Asset Retirement Obligations (Tables)

9 Months Ended

Sep. 30, 2013

Asset Retirement Obligation Disclosure [Abstract]

Schedule Of Asset Retirement Obligations

The following table shows certain information about our AROs:

	Nine Months Ended September 30,
	2013			2012
	(In thousands)
ARO liability, January 1:	$	146,159		$	96,446
Accretion of discount	4,152			3,215
Liability incurred	3,820			52,306
Liability settled	(4,071		)	(1,606		)
Revision of estimates (1)	(16,166		)	(4,254		)
ARO liability, September 30:	133,894			146,107
Less current portion	2,954			2,857
Total long-term ARO	$	130,940		$	143,250

(1) Plugging liability estimates were revised in both 2013 and 2012 for updates in the cost of services used to plug wells over the preceding year. We had various upward and downward adjustments as well as changes in estimated timing of cash flows.